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Research--Equipment and supplies
›
Scientific apparatus and instruments
›
Physical instruments
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Optical instruments
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Astronomical instruments
›
Astronomical clocks
›
Chronograph
Chronograph
Topic
sh85025405
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id.loc.gov
Broader Terms (3)
Astronomical clocks
Astronomical instruments
Time measurements
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Narrower Terms (2)
Le Boulengé chronograph
Photochronograph
